We had an IDEA...

Back a few decades, I was working in a program with a local college in the Middle East.

The name of the program for ExPats has the clever acronym of "IDEA" (hey, I said it was clever); which stands for "Inter-Departmental Educational Adjunct". It's interdepartmental because my particular specialty not only covers field geology but also paleontology and a bit of archeology thrown in for good measure. Everyone hopes to have a good IDEA...

ahem...

Well, we saddle up and head for the Dune Sea out in the west of the country, where the Precambrian, Cambrian, Silurian, Cretaceous, Pliocene, Pleistocene, and Holocene crop out and access is relatively easy and non-injurious.

Well, we caravan out, some 30 Land Cruisers, Nissan patrol, and the odd Mitsubishi Galloper strong. We all get our maps, compasses and split up into 5 or 6 special interest groups ("SIG's"); where each IDEA has his own GPS and LIDAR laser ranging apparatus. Reason being, that there are very few benchmarks out in the desert, and even those are constantly at the mercy of the shifting and ever-blowing sands.

Since we're split into groups and at any one time, ranging up to and including some 50 km2, when a real find is located, a device called the "DIME" (Digital-Interface Monitor Encoder) is attached and programmed into the GPS for location later; it is a digital sort of low-frequency transponder, developed from technology used by offshore drillers and jacket setters where benchmarks are even more transitory.

The way it works is rather simple. When something is to be marked for later retrieval, a series of wooden posts are pounded in a triangular manner around the find and the DIME is set, programmed with the GPS and attached to one or more of the posts.

That's the theory, at least.

Everything works well, especially all the hardened electronics and computer gizmos, but attaching the DIME to the stakes is the real problem. It can't be nailed, screwed or fastened with any sort of metal contrivance as that farkles the magnetic field and causes all sorts of goofy spurious signals. Zip ties don't last long in the heat and duct tape is right out. Many sites have been lost to the shifting sands this way.

Velcro doesn't work too well, as the sand fills the hooks of the receiving piece of velcro and soon renders it useless. String or fishing line work, but that's temporary (they melt). Glue or mastic are out as these are supposed to be temporary. Even plastic sleeves don't work due to the heat out

... keep reading on reddit ➡

👍︎ 15
💬︎
👤︎ u/Rocknocker
📅︎ Jul 30 2019
🚨︎ report
Two NASA engineers were arguing...

Two NASA engineers were arguing over the feasibility of building a high tech satellite that could see everything, anywhere in the galaxy, by orbiting a spherical lens around a mirrored device at various ranges of orbit. An application controlling the length of the O-Range (range of orbit) would pull the lens in, then release it, and centripetal force would pull it out again. The length of the "app pull", the distance the application would pull the lens back from orbit, had to be precise to ensure proper visibility at all times.

One of the scientists argued that the math to ensure total visibility at all times did not work. Eventually, they brought in another scientist to settle the argument. After several moments reviewing the math the two scientists had done on the board, their colleague spoke out.

"It's so obvious why you two cannot come to a conclusion," he said, "you're comparing app pulls to o-ranges!"

👍︎ 3
💬︎
📅︎ Jan 18 2019
🚨︎ report

Please note that this site uses cookies to personalise content and adverts, to provide social media features, and to analyse web traffic. Click here for more information.